Ywz8 Type Hydraulic Drum Brake Thruster Drum BrakeBrake mounting dimensions and braking torque parameters meet JB &sol; ZQ4388-1997 standards&comma; technical requirements in line with JB &sol; T6406-2006 standards&period; You can set additional functions zo &lpar;see brake additional menu&rcub;&period; Conditions of use&colon;Ambient temperature&colon; -20ºC ~ 50ºC&semi;surroundings not have flammable&comma; explosive and corrosive gases in the working environment&comma; or should use anti-corrosion products&period;air relative humidity less than 90&percnt;&period;Altitude reference point of use in line with GB755-2000